Document 1ywpOn8vrdd9jJxGonqGgyMnX

0. V* H*th*r -itartttr'' September 17, 1954 niMt 4ii FREPmTXCN or BLOZ 7XB2E FOR NO. 83 SHEET PACCNG CP921-076 The original idea was to use Africa Norca Blue No. 300, ae it ia the cleanest of the AfricanBlue fibers. Since this fiber vae not available, the plant seat us CB30Q Blue, which is somewhat similar to S Blue from Africa. >VC * Jr MS The method preprocessing consisted of the followings.-- 1. A standard Jdhn8-4ianville willow, using the regular spring steel blades. 2. The speed was 1000 rpm, using a 75 bp motor. 3. The feed rate was kept at one ton per hear. PUMNTffFS m 4. Any fines, such as dust, were collected in a baghouse. 5. Samples of the original fiber, and after each paas,vere ewsined and compared with the specification, and also by Mr. H. J. Palumbo who is aquainted with the use of Blue in No. 83 sheet paettng. Specification Based upon Australian Blue Prepared br ACOAi e at Quebec Screen 4.0 at 10.0 iat 1.0. 22 1.0 ------- Vet Screen 14H 2m +10QM +200M 30 to 50 0 to 13 0 to 16 Teats on Product Prepared by Reaearcht -20CK Bock Crudy L0C ____ *- 2 max. Quebec Screes 2X 4X 1GK Fan ..... os os os oa- 14* f 28H % Vet Screen +100K * 20GK -20GK f _% Boo) 3 Pass 1 9,9 4.0^ 2 U.6fr2.r. 3 13.1 2.2::. 4 14.6 O.&. 5 14.0 1.6 0^ Produot from ACOA ( Australian Blue) 53.9 49.5 48.8 50.7 50.2 38.4. 8.4 5.8 8.5 8.7 7.6 4.2 8.0 10.4 9.5 9.8 9.2 6.2 5.1 22.6 9.5 24.8 7.8 25.4 8.4 22.4 7.8 25.2 4.4 46.8 2C 12 8 3 3 Product Recovery* Fifth Pass Feed CB300 Product shipped GleaedT 2000 lbs 7 cage at 50 lbs each 2 bags at 40 lbs each L-hag at 30 lbs TOTAL 1750 lbs 80 lbs 30 Iba 1860 lbs Losses - Fines and Dusts 140 lbs or 7 per cent Recovery 1860 lbs or 93 per cent September 17, 1954 Page No. 2 Pile $4ll Each pass product was ejaained, and the data compared with the specification. It vas aot until the fifth pass that the product vaa sufficiently opened to be acceptable by Hr. Palumbo, as regarding the quantity of unopened bundles and rock* This number of pastes would be considered out of reason and expensive, however, it vfU serve as a background on the amount of work necessary to prepare this grade of fiber when using existing villowtng equipment. tfe suggest that this fiber be used fcr to determine the value of this product* No. 83 sheet packing in order It is also possible that the number of vlllov paesee may be considerably reduced If the quantity of crudy bundles do not need to be reduced to S tvo per cent s' Raoenamdatlom Ve recommend that the next batch of fiber be selected from the NC300 shipment, and that this preparation be repeated* llao that when the next processed blue Is used at the paper mill, that the beater will be lowered sc as to brush out th* unopened pencils that are not completely opened by the vUloving process. If the beater roll could help brush out the fiber bundles, them the viUoving process nay be reduced to two* K* S. Saddle!